Java/Velocity/Email

Материал из Java эксперт
Версия от 18:01, 31 мая 2010; (обсуждение)
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Use Velocity to Generate Email

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import java.io.StringWriter;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
public class EmailDemo
{
    public static void main( String[] args )
        throws Exception
    {
        /*
         *   first, get and initialize an engine
         */
        VelocityEngine ve = new VelocityEngine();
        ve.init();
        /*
         *   organize our data 
         */
        ArrayList list = new ArrayList();
        Map map = new HashMap();
        map.put("name", "Cow");
        map.put("price", "$100.00");
        list.add( map );
 
        map = new HashMap();
        map.put("name", "Eagle");
        map.put("price", "$59.99");
        list.add( map );
        map = new HashMap();
        map.put("name", "Shark");
        map.put("price", "$3.99");
        list.add( map );
        /*
         *  add that list to a VelocityContext
         */
        VelocityContext context = new VelocityContext();
        context.put("petList", list);
        /*
         *   get the Template  
         */
        Template t = ve.getTemplate( "./src/email_plain.vm" );
        /*
         *  now render the template into a Writer, here 
         *  a StringWriter 
         */
        StringWriter writer = new StringWriter();
        t.merge( context, writer );
        /*
         *  use the output in the body of your emails
         */
        System.out.println( writer.toString() );
    }
}

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  $petList.size() Pets on Sale!
  This is an email generated by velocity. 
  This email is about Pets:
  #foreach( $pet in $petList )
    $pet.name for only $pet.price
  #end
  Call Today!
  
  Bests
  www.jexp.ru